What is an exothermic and endothermic reaction with examples?

An exothermic reaction is a chemical reaction that releases heat to the surroundings. It feels warm or hot.
Example: Burning of wood, where heat and light are released.

An endothermic reaction is a chemical reaction that absorbs heat from the surroundings. It feels cold.
Example: Melting of ice or photosynthesis, where plants absorb sunlight to make food.

In simple terms, exothermic gives out heat, endothermic takes in heat.